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8.3 Bonding Theories

Total questions: 10

Worksheet time: 13mins

Name
Class
Date
1.

A molecular orbital that can be occupied by two electrons of a covalent bond is called a bonding orbital.

a)

True

b)

False

2.

When two atomic orbitals combine to form a molecular orbital that is symmetrical around the axis connecting two atomic nuclei, a .................... bond is formed

a)

pi

b)

sigma

3.

In a ..................... the bonding electrons are most likely to be found in sausage-shaped regions above and below the bond axis of the bonded atoms.

a)

sigma bond

b)

pi bond

4.

Atomic orbitals in pi bonding overlap..................... than in sigma bonding

a)

less

b)

more

5.

States that “the repulsion between electron pairs causes molecular shapes to adjust so that the valence-electron pairs stay as far apart as possible”.

a)

VSEPR theory

b)

Dalton theory

c)

Particle theory

6.

Orbital hybridization provides information about both molecular bonding and molecular shape.

a)

True

b)

False

7.

In hybridization, several atomic orbitals mix to form the same total number of equivalent hybrid orbitals.

a)

True

b)

False

8.

Use the VSEPR theory to predict the the shape of methane CH4 molecule.

4 lines
9.

Use the VSEPR theory to predict the the shape of water molecule.

4 lines
10.

Use the VSEPR theory to predict the the shape of ammonia molecule.

4 lines